[PATCH] skge: handle out of memory on ring parameter change

If changing ring parameters is unable to allocate memory, we need
to return an error and take the device down.

Fixes-bug: http://bugzilla.kernel.org/show_bug.cgi?id=5715
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index 96b661b1f6c0..9ff54ea713cd 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -397,6 +397,7 @@ static int skge_set_ring_param(struct net_device *dev,
                                struct ethtool_ringparam *p)
 {
         struct skge_port *skge = netdev_priv(dev);
+        int err;
 
         if (p->rx_pending == 0 || p->rx_pending > MAX_RX_RING_SIZE ||
             p->tx_pending == 0 || p->tx_pending > MAX_TX_RING_SIZE)
@@ -407,7 +408,9 @@ static int skge_set_ring_param(struct net_device *dev,
 
         if (netif_running(dev)) {
                 skge_down(dev);
-                skge_up(dev);
+                err = skge_up(dev);
+                if (err)
+                        dev_close(dev);
         }
 
         return 0;